CN217279314U - Vehicle-mounted data processing system - Google Patents

Vehicle-mounted data processing system Download PDF

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Publication number
CN217279314U
CN217279314U CN202220151182.2U CN202220151182U CN217279314U CN 217279314 U CN217279314 U CN 217279314U CN 202220151182 U CN202220151182 U CN 202220151182U CN 217279314 U CN217279314 U CN 217279314U
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processor
communication interface
interface module
xavier
electrically connected
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余景辉
陈卫强
苏亮
刘强生
黄雄栋
李亮
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Xiamen King Long United Automotive Industry Co Ltd
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Xiamen King Long United Automotive Industry Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The utility model relates to a vehicle-mounted data processing system, which comprises a video communication interface module, an Ethernet communication interface module, a multipath CAN communication interface module, an Xavier processor, an MCU processor and a power module; the video communication interface module is electrically connected with the Xavier processor; the video communication interface module is used for receiving the video data and converting the format of the video data; the Ethernet communication interface module is electrically connected with the Xavier processor; the Ethernet communication interface module is used for receiving Ethernet data; one part of the multi-path CAN communication interface module is electrically connected with the Xavier processor, the other part of the multi-path CAN communication interface module is electrically connected with the MCU processor, and the Xavier processor is electrically connected with the MCU processor; the CAN communication interface module is used for receiving CAN data transmitted by each module in the vehicle-mounted system and sending the CAN data to the Xavier processor or the MCU processor; the Xavier processor and the MCU processor are both used for processing the received data. The utility model discloses can improve the information interaction efficiency between the different circuit framework treater.

Description

Vehicle-mounted data processing system
Technical Field
The utility model relates to a data processing field especially relates to an on-vehicle data processing system.
Background
In recent years, with the rapid development of 5G technology, related applications fall on the ground, and countries around the world set up a plurality of related policies for intelligent driving, so as to promote the integration of intelligent driving automobiles and the existing traffic systems and encourage the development of intelligent driving technology.
Advanced intelligent driving requires a computationally intensive hardware platform and underlying software. Many intelligent driving platforms have completed the verification of intelligent driving service function and E/E architecture scheme based on hardware platforms such as server and AI acceleration, and various problems caused by software and hardware platforms appear in the process, such as: due to high calculation load, the temperature is overhigh, so that the calculation speed is reduced or a calculation system is restarted, the wiring harness is vibrated loosely due to vehicle vibration, the time delay fluctuation is large and unstable, the time synchronization of the sensor is difficult, and the like. The client in the next stage enters a mass production test stage, and an intelligent driving platform which can meet the requirements of computing power, mass production reliability, energy efficiency ratio and the like is needed. The intelligent driving domain control system hardware platform is designed for the mass production of the automatic driving vehicle, and the technical advantages of high performance, high energy efficiency, high safety (functional safety and information safety) and deterministic low delay of 'three high one low' bring the maximum value for the automatic driving function.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned problem, provide an on-vehicle data processing system.
The utility model adopts the following technical scheme:
an in-vehicle data processing system, comprising: the system comprises a video communication interface module, an Ethernet communication interface module, a multi-path CAN communication interface module, an Xavier processor, an MCU processor and a power supply module;
the video communication interface module is electrically connected with the Xavier processor; the video communication interface module is used for receiving video data, converting the format of the video data and sending the video data to the Xavier processor;
the Ethernet communication interface module is electrically connected with the Xavier processor; the Ethernet communication interface module is used for receiving Ethernet data and sending the Ethernet data to the Xavier processor;
one part of the multi-path CAN communication interface module is electrically connected with the Xavier processor, the other part of the multi-path CAN communication interface module is electrically connected with the MCU processor, and the Xavier processor is electrically connected with the MCU processor; the CAN communication interface module is used for receiving CAN data transmitted by each module in the vehicle-mounted system and sending the CAN data to the Xavier processor or the MCU processor;
the Xavier processor and the MCU processor are both used for processing the received data;
the power module provides electric energy for each module and the processor in the system.
Further, a module for connecting the CAN communication interface module of the MCU processor with the vehicle-mounted system includes: the system comprises a panoramic camera, a vehicle-mounted laser radar, a forward-looking camera and an ultrasonic sensor.
Further, a module for connecting the CAN communication interface module of the Xavier processor with the vehicle-mounted system comprises a front-view camera.
Furthermore, the system also comprises an HDMI communication interface module electrically connected with the Xavier processor, wherein the HDMI communication interface module is used for outputting the result data processed by the Xavier processor.
Furthermore, the video communication interface module adopts two paths of serial deserializer chip modules of MIPI CSI-2 ports, and each path is expanded into four paths of GMSL signals of 4.16 Gbps.
Furthermore, the chip models adopted by the two-way serial deserializer chip module are MAX9286GTN/V +.
Furthermore, the Ethernet communication interface module adopts a chip model of 88E1512PB2-NNP2C 000.
Further, the chip signal used by the MCU processor is SPC58EC74E3E0C 0X.
Further, the MCU processor and the Xavier processor are electrically connected through an SPI interface.
Further, the type of the Xavier processor is P2888 under an nvidia platform.
The utility model discloses an as above technical scheme, can improve the information interaction efficiency between the different circuit framework treater.
Drawings
Fig. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of the video communication interface module according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of the CAN communication interface module according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of an ethernet communication interface module according to an embodiment of the present invention.
Fig. 5 is a circuit diagram of the MCU processor according to the embodiment of the present invention.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
The present embodiment discloses an onboard data processing system, as shown in fig. 1, including: the device comprises a video communication interface module 1, an Ethernet communication interface module 2, a multi-path CAN communication interface module 3, an Xavier processor 4, an MCU processor 5 and a power supply module.
The video communication interface module 1 is electrically connected with the Xavier processor 4. The video communication interface module 1 is configured to receive video data, perform format conversion on the video data, and send the video data to the Xavier processor 4. The video communication interface module 1 is connected to a camera (high definition camera) to receive video data. The video data is subjected to format conversion by the video communication interface module 1 and then sent to the Xavier processor 4 for processing.
In this embodiment, the video communication interface module 1 adopts two MIPI CSI-2 port serializer chip modules, each extended to four 4.16Gbps GMSL signals, and the chip types adopted by the two serial deserializer chip modules are MAX9286GTN/V +, and a specific circuit diagram is shown in fig. 2.
The ethernet communication interface module 2 is electrically connected to the Xavier processor 4. The ethernet communication interface module 2 is configured to receive ethernet data and send the ethernet data to the Xavier processor 4. In this embodiment, the ethernet communication interface module 2 is an ethernet communication transceiver with a 1000M ethernet rate, a high transmission rate and a low latency, and the adopted chip model is 88E1512PB2-NNP2C000, and the specific circuit diagram is shown in fig. 4. Through ethernet communication interface module 2, can with on-vehicle millimeter wave radar sensor communication, can be connected with switch information system if necessary to reach multichannel ethernet and use jointly, so that can with whole car communication, multichannel radar sensor communication for sensor processing, range finding, location and drawing, vision and perception and path planning.
One part of the multi-path CAN communication interface module 3 is electrically connected with the Xavier processor 4, the other part of the multi-path CAN communication interface module is electrically connected with the MCU processor 5, and the Xavier processor 4 is electrically connected with the MCU processor 5.
The CAN communication interface module 3 is used for receiving CAN data transmitted by each module in the vehicle-mounted system and sending the CAN data to the Xavier processor 4 or the MCU processor 5. Since the vehicle-mounted system often needs to be fused with external multiple sensors, and many related controller CAN communication interfaces in the market are few and cannot meet the requirement, the embodiment sets 10 paths of CAN communication interface modules 3, which CAN control each unit module for each path of system, such as the whole vehicle CAN network, the chassis CAN network, the entertainment information system CAN network, and other channels CAN be allocated to the vehicle-mounted millimeter wave radar sensor and various sensors. In the 10 paths of CAN communication interface modules 3 adopted in this embodiment, 8 paths are electrically connected to the MCU processor 5, the other 2 paths are electrically connected to the Xavier processor 4, and the types of chips adopted by the respective paths of CAN communication interface modules 3 are all TJA1050T, and a specific circuit diagram is shown in fig. 3.
The MCU processor 5 serves as a first information fusion unit, needs to at least meet the functional safety requirements of ISO26262 ASIL-B level, and is responsible for information fusion of the vehicle-mounted device, in this embodiment, the MCU processor 5 employs a single chip processor, and employs a chip signal SPC58EC74E3E0C0X, and a specific circuit diagram is shown in fig. 5, which is a vehicle-specification-level safety chip, supports up to 8-channel CAN communication, and has a multi-channel analog input and output function.
Because the MCU processor 5 is responsible for the fusion of the information of each vehicle-mounted device, it is necessary to collect the vehicle information required for maintaining the intelligent driving of the vehicle, and the vehicle information at least includes: looking around camera information, vehicle-mounted laser radar information, looking ahead camera information and ultrasonic sensor information, therefore, the modules for connecting the CAN communication interface module 3 for connecting the MCU processor 5 with the vehicle-mounted system in this embodiment include: the system comprises a look-around camera, a vehicle-mounted laser radar, a front-view camera and an ultrasonic sensor.
The MCU processor 5 and the Xavier processor 4 are communicated through the SPI, so that the error correction function with high efficiency and low error rate can be realized.
Xavier is a chip released by Nvidia corporation for automotive and automotive technology. The Xavier processor 4 is the core of the whole system, is a second information fusion unit of the intelligent driving domain controller, receives forward-looking camera information, can support a machine vision algorithm, extracts and maintains the traffic information in front of the vehicle required by the intelligent driving of the vehicle through machine learning, and sends the extracted traffic information to the MCU processor 5 of the single chip microcomputer.
Xavier has six different processors, which are: the system comprises a Valta sensor Core GPU, an eight-Core ARM64 CPU, a dual NVDLA deep learning accelerator, an image processor, a visual processor and a video processor. These processors enable them to process tens of algorithms simultaneously, and in real time, for sensor processing, ranging, positioning and mapping, vision and perception, and path planning. Such a level of performance is of paramount importance, allowing the robot to take input from sensors, locate itself, perceive its environment, recognize and predict the motion of nearby objects, infer reasonable actions, and perform safely. The type of the Xavier processor 4 used in this embodiment is P2888 under the nvidia platform.
The Xavier processor 4 is the core of the whole system and serves as a second information fusion unit which receives forward-looking camera information, can support a machine vision algorithm, extracts the traffic information in front of the vehicle required for maintaining intelligent driving of the vehicle through machine learning, and sends the extracted traffic information to the MCU processor 5. Therefore, the module for connecting the CAN communication interface module 3 connected with the Xavier processor 4 with the vehicle-mounted system in this embodiment includes a forward-looking camera.
Further, the system further comprises an HDMI communication interface module electrically connected to the Xavier processor 4, and the HDMI communication interface module is configured to output the result data processed by the Xavier processor 4, for example, to a display for display.
The system of the embodiment can endow artificial intelligence computing power to a plurality of vehicle-mounted terminal devices, so that the landing threshold of artificial intelligence products is effectively reduced; the method can meet the industrial standards of vibration resistance, water resistance and the like, simultaneously provides the calculation capability of up to 32Tops, and can well meet the visual calculation requirements of scenes such as low-speed unmanned driving and the like; besides, an efficient multi-sensor clock synchronization function and mainstream-based AI algorithm acceleration SDK can be provided.
The system of the embodiment can be applied to unmanned vehicle types (cleaning vehicles, logistics vehicles, vending vehicles, security vehicles and the like) as automatic driving domain controllers.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An in-vehicle data processing system, comprising: the system comprises a video communication interface module, an Ethernet communication interface module, a multi-path CAN communication interface module, an Xavier processor, an MCU processor and a power supply module;
the video communication interface module is electrically connected with the Xavier processor; the video communication interface module is used for receiving video data, converting the format of the video data and sending the video data to the Xavier processor;
the Ethernet communication interface module is electrically connected with the Xavier processor; the Ethernet communication interface module is used for receiving Ethernet data and sending the Ethernet data to the Xavier processor;
one part of the multi-path CAN communication interface module is electrically connected with the Xavier processor, the other part of the multi-path CAN communication interface module is electrically connected with the MCU processor, and the Xavier processor is electrically connected with the MCU processor; the CAN communication interface module is used for receiving CAN data transmitted by each module in the vehicle-mounted system and sending the CAN data to the Xavier processor or the MCU processor;
the Xavier processor and the MCU processor are both used for processing the received data;
the power module provides power for each module and the processor in the system.
2. The on-board data processing system of claim 1, wherein: the CAN communication interface module used for connecting the MCU processor and the vehicle-mounted system comprises: the system comprises a look-around camera, a vehicle-mounted laser radar, a front-view camera and an ultrasonic sensor.
3. The on-board data processing system of claim 1, wherein: and the CAN communication interface module used for connecting the Xavier processor is connected with the vehicle-mounted system and comprises a front-view camera.
4. The on-board data processing system of claim 1, wherein: the HDMI communication interface module is electrically connected with the Xavier processor and is used for outputting result data processed by the Xavier processor.
5. The on-board data processing system of claim 1, wherein: the video communication interface module adopts two paths of serial deserializer chip modules of MIPI CSI-2 ports, and each path is expanded into four paths of GMSL signals of 4.16 Gbps.
6. The on-board data processing system of claim 5, wherein: the chip models adopted by the two-way serial deserializer chip module are MAX9286GTN/V +.
7. The on-board data processing system of claim 1, wherein: the Ethernet communication interface module adopts a chip model 88E1512PB2-NNP2C 000.
8. The on-board data processing system of claim 1, wherein: the chip signal used by the MCU processor is SPC58EC74E3E0C 0X.
9. The on-board data processing system of claim 1, wherein: the MCU processor and the Xavier processor are electrically connected through an SPI interface.
10. The on-board data processing system of claim 1, wherein: the type of the Xavier processor is P2888 under an nvidia platform.
CN202220151182.2U 2022-01-20 2022-01-20 Vehicle-mounted data processing system Active CN217279314U (en)

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Application Number Priority Date Filing Date Title
CN202220151182.2U CN217279314U (en) 2022-01-20 2022-01-20 Vehicle-mounted data processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220151182.2U CN217279314U (en) 2022-01-20 2022-01-20 Vehicle-mounted data processing system

Publications (1)

Publication Number Publication Date
CN217279314U true CN217279314U (en) 2022-08-23

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